var _ volume.VolumeHost = &kubeletVolumeHost{}
var _ volume.KubeletVolumeHost = &kubeletVolumeHost{}

func (kvh *kubeletVolumeHost) GetPluginDir(pluginName string) string {
	return kvh.kubelet.getPluginDir(pluginName)
}

type kubeletVolumeHost struct {
	kubelet                   *Kubelet
	volumePluginMgr           volume.VolumePluginMgr
	secretManager             secret.Manager

	"k8s.io/kubernetes/pkg/volume/util/subpath"
)

// VolumeHost interface implementation for PersistentVolumeController.

var _ vol.VolumeHost = &PersistentVolumeController{}

func (ctrl *PersistentVolumeController) GetPluginDir(pluginName string) string {
	return ""
}

func (ctrl *PersistentVolumeController) GetVolumeDevicePluginDir(pluginName string) string {
	return ""
}

func (ctrl *PersistentVolumeController) GetPodsDir() string {

	exp = filepath.Join(root, "plugins")
	assert.Equal(t, exp, got)

	got = kubelet.getPluginsRegistrationDir()
	exp = filepath.Join(root, "plugins_registry")
	assert.Equal(t, exp, got)

	got = kubelet.getPluginDir("foobar")
	exp = filepath.Join(root, "plugins/foobar")
	assert.Equal(t, exp, got)

	got = kubelet.getPodDir("abc123")
	exp = filepath.Join(root, "pods/abc123")
	assert.Equal(t, exp, got)

	return filepath.Join(kl.getRootDir(), config.DefaultKubeletPluginsRegistrationDirName)
}

// getPluginDir returns a data directory name for a given plugin name.
// Plugins can use these directories to store data that they need to persist.
// For per-pod plugin data, see getPodPluginDir.
func (kl *Kubelet) getPluginDir(pluginName string) string {
	return filepath.Join(kl.getPluginsDir(), pluginName)
}

func makePDNameInternal(host volume.VolumeHost, wwns []string, lun string, wwids []string) string {
	if len(wwns) != 0 {
		w := strings.Join(wwns, "-")
		return filepath.Join(host.GetPluginDir(fcPluginName), w+"-lun-"+lun)
	}
	return filepath.Join(host.GetPluginDir(fcPluginName), strings.Join(wwids, "-"))
}

// make a directory like /var/lib/kubelet/plugins/kubernetes.io/fc/volumeDevices/target-lun-0

	volumeName, err := plugin.GetVolumeName(spec)
	if err != nil {
		return "", fmt.Errorf("GetVolumeName failed from getDeviceMountPath: %s", err)
	}

	mountsDir := filepath.Join(plugin.host.GetPluginDir(flexVolumePluginName), plugin.driverName, "mounts")
	return filepath.Join(mountsDir, volumeName), nil
}

func (plugin *flexVolumePlugin) RequiresFSResize() bool {
	return plugin.capabilities.RequiresFSResize

	// with pv spec capacity.
	if pvcStatusCap.Cmp(*pvcSpecCap) >= 0 && pvcStatusCap.Cmp(pvCap) >= 0 {
		return true
	}
	return false
}

// Implementing VolumeHost interface
func (expc *expandController) GetPluginDir(pluginName string) string {
	return ""
}

func (expc *expandController) GetVolumeDevicePluginDir(pluginName string) string {
	return ""
}

func (expc *expandController) GetPodsDir() string {

	if err := host.WaitForKubeletErrNil(); err != nil {
		t.Fatalf("Failed to wait for kubelet err to be nil while creating fake volume host: %v", err)
	}
	return host
}

func (f *fakeVolumeHost) GetPluginDir(podUID string) string {
	return filepath.Join(f.rootDir, "plugins", podUID)
}

func (f *fakeVolumeHost) GetVolumeDevicePluginDir(pluginName string) string {

// VolumeHost is an interface that plugins can use to access the kubelet.
type VolumeHost interface {
	// GetPluginDir returns the absolute path to a directory under which
	// a given plugin may store data.  This directory might not actually
	// exist on disk yet.  For plugin data that is per-pod, see
	// GetPodPluginDir().
	GetPluginDir(pluginName string) string

	// GetVolumeDevicePluginDir returns the absolute path to a directory

		return volume.ReconstructedVolume{}, err
	}
	if err != nil {
		return volume.ReconstructedVolume{}, err
	}
	for _, path := range paths {
		if strings.Contains(path, plugin.host.GetPluginDir(fcPluginName)) {
			globalPDPath = path
			break
		}
	}
	// Couldn't fetch globalPDPath
	if len(globalPDPath) == 0 {